[This review was collected as part of a promotion.] I changed my oil and this is good stuff. Great oil to use.

We've been using Pennzoil for ages now. It keeps our Chevy Malibu it tip top shape. Keeping the engine performance at its best!

ONLY kinda motor oil we buy an have since I was a kid, And I am an old woman now, so that tells you IT WORKS.

I have an older car that I depend on getting me through the 4 seasons. I feel like this oil helps keep it running smoother.

Been using Pennzoil since I got my first car. Now I use it in everything that I own from my daily drivers to my race car and my atv.

I've been using SAE 30 in my lawn mowers for a long time. I've never experienced any oil related problems.

[This review was collected as part of a promotion.] I've been using Penzoil for 33 years. It's the best for keeping engines clean and performing at their best.

We only use Pensoil in our vehicles. They run better and longer. Our last vehicle had 286,756 miles on it & we only used Pensoil in it. Two vehicles now, and Pensoil is all we use. Thank you Pensoil

I started with Pennzoil products on my first car in 1965. I have used Pennzoil in all my cars and all of my outdoor equipment. The last car I traded had 237K miles, car before 230K, car before 347K with no lubrication problems. Great product.

Have had this in ALL my cars, kids cars and anyone in the family that I service the cars. Just had the top end of my 2002 blaze off for a intake gasket with 170k and the inside was clean as new!